Star Roo knocked out in Pies' big AFL win

Collingwood scored an emphatic 54-point win at Etihad Stadium and star North Melbourne forward Ben Brown was hospitalised on a disastrous night for the Kangaroos.

The match - a 16.15 (111) to 7.15 (57) win to the Magpies - was stopped for several minutes in the second quarter on Saturday after Brown was knocked out in a Brodie Grundy tackle.

The Magpies ruckman received a free kick for holding the ball, but Brown's head hit the turf in the tackle. It will draw comparisons to the one that led to Geelong superstar Patrick Dangerfield being suspended.

Tackling will be in the spotlight again this week.

Adam Treloar also hit his head on the turf in a Jack Ziebell tackle, but the Pies' star was able to continue the game and was important with 34 possessions and a brilliant goal.